Fire-extinguishing apparatus



Jan. 5 1926. l

F. c. BARGAR FIRE EXTINGUISHING APPARATUS Filed April 8, 1921 ATTORNEYS Patented Jan. 5, 1926.

4UNITED` STATES PATENT FFICE.,E

FREDERICK C. BARGAR, OF` COLUMBUS, OI-IIOVJ ASSIGNOR TO N'EX-,FIRE APPLIANCE COMPANY, or COLUMBUS, OHIO,

FIRE-EXTINGISHING APPARATUS.

Application iled April 8, 1921. Serial No. 459,573.

To all whom, t may concernI B e it known that LFnnonnioi; C. BARGAR, acitizen ofthe United States, and resident of Columbus, in the county of Franklin and State of Ohio, have inventedcertain new and useful Improvements in Fire-Extinguishing Apparatus, of which the .following is a specification.

My invention relates to lire extinguishing apparatus and more particularly to apparan tus ofthe type in which fire extinguishing mediumor charge normally stored in suitable containingmeans,` as a tank Or receptacle, is forcibly ejected therefroinin time of Vlire in a jet or stream, a gas generator adapted to deliver gas to the containing means and which may be located in the receptacle being utilized for creating an ejecting pressure; and has special reference to the provision of such an extinguisher in which the ejecting pressure is provided by gases generated as the result of combustion of a suitable combustible substance, niy present invention constituting an improvement of my fire extinguishing apparatus disclosed and claimed in my co-pending application, Serial Number 316,749, filed August 11, 1919, nowl Patent No. 1,422,406, dated July 11, 1922. f v t The principal objects 'of my invention comprehend the provision Of improved lire extinguishing apparatus of the type referred to and of an improved fireextinguisher operating as above indicated and whose siniplicityof construction affords greater facility and increased safety in handling the extinguisher and lmore particularly in assembling the parts ofthe extinguisher and in inspecting and using the saine, the parts of tlie extinguisher being so arranged and functioning in suoli manner as yto yield a greater efficiency in use.

To the accomplishment of the foregoing and suoli other objects as may hereinafter appear, my invention consists in the elements and their relation one to the other, as hereinafter particularly described and sought to be defined in the claims, reference being had to the accompanying drawings which show 50 a preferred embodiment of my invention and in which v Figure 1 is an elevational view in cross section of my novel fire extinguishing apl paratus,

Figure 2 is an elevational view of the same in inverted position with parts broken away to show the operation ofthe gas generator,

Figure is a cross sectional' view of a novel type of gas generating cartridge used in my extinguisher,

Figure 4 is a sectional view vof' the Same l and adaptation of present standard fire ext tinguisher equipment and to this end Ihave shown my invention as applied to a hand eX- tinguisher of a well known type."V This eX- tinguisher comprises an outer shell or receptacle, having a cylindrical bodyy wall l0,

a `dished bottom 11 and a dome top 12, a"

cylindrical end supporting stand 13 being provided and preferably made integral with the cylindrical vbody portion 10. The eX` tinguisher is supplied with the usual threaded neck 14- connected to the dome portion 12, as by being soldered to the interior walls thereof as at 15, the usual hand wheel 16 beino' provided having a threaded flange 17 received by the threaded neck 14, a gasket 18 being supplied between the hand wheelA and the threaded neck forthe purpose Aof securing an Veective closure between these elements. Connected for communication with the outer receptacle 10 is the usual discharge pipe 19 for the lire extinguishing medium,` to which is connected the usual'hose 20, carrying at au end thereof the nozzle 21. The outer receptacle l0 is intended for the reception of a tire extinguishing charge which may consist of `a solution of calcium chloride in water, thissolution having a low freezing point, the extinguisherbeing thus adapted to be used under all climatic conditions.

For the purpose ofrexpelling or ejecting the lire extinguishing medium or charge from the outer receptacle 10 in time of fire, l provide a gas generator mounted within the said outer receptacle 10. The gas generator of my presentinventioii comprehends the utilization of a` combustible material adapted to be ignited thegases of combustion beingithereupon utilized to exert operating pressure on the level of the extinguishing medium to drive the same steadily from the extinguisher in a continuous stream onto t-he fire. For the purpose of housing and sealing the combustible charge from the fire extinguishing medium and for the purpose of providing a gas generating chamber, I replace the usual inner tube used in the standard type of extinguisher by an inner receptacle 22 of novel construction, the said receptacle 22 comprising a simple tubular section provided at the top end thereof with a flanged ring 23, the iange of which is adapted to seat on a shoulder 24 of the neck 14, the inner tube 22 being thus adapted to be hung in the outer receptacle l0 from the top of the said receptacle; the said inner tube being provided with a bottom 25 of any desired construction, the form shown in the drawings comprising a cap threaded onto the bottom end of the tubular section 22. It will be noted that the top surface of the lla-nged ring 23 is flush with the top surface of the threaded neck 14, the closure provided by hand wheel 1G and gasket 18 cooperating with these parts to effectively close the inner receptacle and seal the same from the tire extinguishing medium in the outer receptacle 10.

I-Ioused in the inner receptacle 22 is a movable cartridge 26, the said cartridge being located preferably in the bottom of the receptacle 22 and being adapted to gravitate from this position towards the top of the extinguisher upon inversion of the same. For the purpose of simplifying the construction of the extinguisher and rendering the same subject to greater safety and surety of operation, I have found it desirable to modify the cartridge shown in my copending application above referred to and to combine the cartridge and the weight cooperating therewith into a single unit. To this end I have provided a cartridge as shown in Figures 3 to 5 of the drawings, said cartridge comprising tubular enclosing shell 27, the said shell enclosing a combustible material and weights associated therewith. By combining the weights and the combustible material into a single unit, and eliminating the use of a separate weight, the possibility of the weight being left out when assen'ibling the parts of the apparatus is entirely doneaway with. Furthermore. the weight-s serve to give force to the drop of the cartridge upon inversion of the extinguisher. thus aiding in minimizing the lia-bility of a mistire. Moreover the weights in the cartridge serve as part of the tiring mechanism, as will become clearer hereinafter.

It has been found desirable to so construct the cartridge 26 that it may be inserted in the inner receptacle 22 with either end uppermost, so that it may be fired from either end, this construction also permitting facility in assembly and use. It has been further found desirable to so construct the cartridge that it may be handled with greater safety and in fact be dropped into the receptacle 22, and dropped out of the receptacle in times of inspection without any chance of a misfiring taking place. To this end I have provided a reversible cartridge having a symmetrical arrangement, the said cartridge having weighted elements 28 located at opposite ends thereof, the said weighted elements being preferably hollow elements for a purpose to appear hereinafter. Located interiorly and centrally of the cartridge are fuses 29, which may consist, for example, of gun powder, the said fuses being of simple tubular construction and having longitudinal vents 3() for the purpose of facilitating burning thereof. Each of the fuses 29 is provided with a sheath or wrapper 3l, an end of each fuse being exposed beyond the said wrapper, the wrapper 3l having an asbestos` base and functioning to control gradual cartridge combustion. I preferably include two such fuses in the cartridge, the exposed end of one fuse facing in a direction opposite to the exposed end of the other, as clearly shown in Figure 3 of the drawings. Adjacent the exposed end of each fuse I provide charge of small firing powder 32, this tiring powder being held in position up to the time of tiring by means of screens 53?), the said screens 33 being also utilized to hold a part of the powder train such :1s at the screens 33 further performing the function of prventing the tirst gases generated from blowing part of the small powder away before it is ignited.

For the purpose of tiring the powder to generate thc pressure gases in time of tire, I provide a simpli` firing equipment which comprises an ignition system mounted at cach end of the cartridge and located preferably within the core of each hollow weighted member 29. The firing equipment or ignition system ineferalily comprises a metallic casing i open at both ends, ignition elements 3G being received in the opposite open ends of the casing 35, these ignition elena-nts comprising preferably blocks of wood :ippropriatcly bored for ther reception of match heads 3T, a plurality of these match heads being mounted in cach block 3G for the `purpose of increasing assurance of ignition in time of fire. rlhe blocks l arc loosely mounted in the casing` ii and are urged outwardly in oiiposiie dirccticns by means of compression springs opposite ends of which. encircle the match sticks and are retained in position in enlarged hores il!) formed in cach ot' thc blocks 36. As heretofore referred to. those elements comprising the ignition system are located in the lOO ing failure of ignition in time of fire.

core of each of the Weights 28 and for the purpose of inedly locating this ignition system Within the cores of Weights 28, I preferably provide opposed channels 40 contoured to receive the opposed resiliently urged match heads 3?, the channels 40 being preferably faced with au abrasive material 4l such as emery, this construction minimiz- For the purpose of still further assuring ignition and for the purpose of fixedly mounting the match heads 37 in the blocks 36, I preferably imbed the mat-ch. heads in a black 'powder paste 49 as shown clearly in Figure of the drawings. In order to facilitate outliow of the generated' gases the weights 28 are preferably provided in the circumference thereof with a series of spacedvents 43 ruiming longitudinally of the Weights, as clearly shown lin the drawings.

The tubular shell 27 enclosing the fuse and Weight elements hereinabove described is closed on opposite ends thereof by means of `flanged annular members 44 suitably connected to the shell 27, as by being soldered thereto, these flanged members 44 providing enlarged central openings, soft inetal plates or diaphragme made, for example, of lsheet lead, overlying the openings and connected to the members 44 as by being brazed thereto. The plates 45 areslightly spaced from the firing casing at each end of the cartridge as shown particularly in Figure 8 of the drawings, this spacing being provided for the purpose of preventing any firing except by the forcible injection or insertion of a firing pin or other element through either'of the opposite ends of the cartridge. I have found that such a construction `may be handled with great safety, these cartridges being freely throivn about Without the occurrence of a misfire. It Will be apparent that the cartridge 26 embodying the `above described elements may be fired from either end by breaking' through the soft metal. disland forcing the ignition system further down the core of the Weighted members 28. `'lhis cartridge 2G has been found to be subject to simplicity of manufacturing operations and to adord ease of assembly. Thus the simple type fuses 9.9 may be dropped into position in the cartridge shell, the Weighted members Q8 being then inserted with the interposition of the screens and the small powder 32, the ignition system being then inserted 'in the cartridge shell, the ends of thecartridge shell beine' then closed by the plate 45. The cartridge as a Whole may then be dropped with either end uppermost in the inner receptacle 22, when the parts of the apparatus are assembled.

The cartridge and Weight unit 26 is placed inthe bottoni of the lreceptacle 22 as hereinaiiovle referred to, the cartridge being adapted to be fired upon inversion of the appara-- tus. l? or the purpose of tiring the cartridge upon inversion of the apparatus, l provide a firing pin 46 mounted independently of the inner receptacle 22, the said firing pin being in the form of a harpoon and having a plurality of cuttingedges 4'?. As will be apparent, upon inversion of the apparatus, the combined cartridge and Weight 26 will forcibly gravitate into impacting contact with the 'tiring pin 4", the cutting edges 4T severing, the frangible diaphragm or soft metal plate further movement of the cartridge and Weight unit 2G effecting iinpact between the firing pin 46 and the ignition system 35, the ignition systembcing forced into the core of thc Weight 2S for igniting the powder and the fuses. For the purpose of limiting the movement of the cartridee 2G, l provide a supporting cross rod 4S received in a bore of the tiring pin 46.

As hereinabove indicated the firing pin 46 .is mounted independently of the inner receptacle 22, this construction being provided to the end of securing an extinguisher affording greater safety ii assembling and general. handling. l preferal'ily mount the firing pin 46 on the hand Wheel 16, as clearly shown in the drawings, this permitting the use of a unitary hand Wheel and firing pin. It will be apparent that ivith such a construction, upon removal ot' the hand Wheel for purposes of inspection or recharging of the device for example, the firing pin or harpoon 46 Will be simultaneously removed therewith, subsequent removal of the inner receptacle and inverting the same to remove cartridge 26 not subjecting the cartridge to firing operation. It Will also be apparent from this construction that in assembling the device there is no possibility of connecting the harpoon or tiring pin 46 to the inner receptacle 22 before inserting the inner receptacle in the extinguisher, this preventing any possibility of misire during assembling of the parts. It has been found that this construction provides a maximum of safety in assembling, inspection and in use.

For the purpose of preventing the cartridge and Weight system Q6 from sliding down the inner receptacle 22 when the apparatus is tilted, and for the purpose of affording a forcibljy gravitated movement of the cartric ge, .l provide restraining means in the path of the cartridge normally operative to prevent movement of the cartridge, but permitting movement of the same When the extinguisher is inverted to substantially erect or vertical position. To this end l provide an annular depression 49, as clearly shown in Figure l of the drawings, the said depression cooperating with the tubular cartridge 26 to restrain movement. of the same 4until the device is substantially completely inverted.

Upon inversion of the apparatus and firing of the cartridge Q6 the fuses are ignited and undergo slouv combustion for the generation of the required which escape throifrh the cartridge and quickly till the innerireceptacle or chamber Means is provided for conducting' these gases from the chamber 9.2 and into the outer receptacle l() to exert operating pressure on the level of the lire extinguishing charge therein. To

this end I have provided a port 50 serving as the means of gas communication between the inner receptacle 22 and the outer receptacle 1l). I have found that the gases of couihustion. in moving from the inner receptacle to the top of the extinguisher through the extinguishing medium. lose considerable of their vitality and to overcome this disadvantage I have provided a conducting means for the gases, the said conducting means comprising a channel 5l connected to the inner receptacle 29. and conmiunicating with the port 50; the said channel extending longitudina ly of the inner receptacle and terminating adjacent the lovver portion ot' the same. It will he apparent that upon inversion of the apparatus, the gases generated in the chamber Q2 will move through the port 50 and up through the channel 51, as shown in Figure 2 of the draiviugs.y the gases thus moving substantially out of contact with the fire extinguishing medium in the outer receptacle 10, and having exit from the channel 51 at a point above the level of the re extinguishing medium when the device is inverted. For the purpose of preventing any of the lire extinguishing chargtl from moving up through the channel 5].. and into the inner receptacle 22 responsive to pressure variations in outer receptacle l0. I provide a pressure equalizing port 52 in the channel l.

The operation and use of my novel extinguisher will7 in the main, he apparent from the above detailed description thereof. In assembling the parts the outer receptacle l() is first charged with a tire extinguishing medium, such as a calcium chloride solution, the inner receptacle 22 being then inserted .in position and hung from the top of the outer receptacle, as on the neck 14; thereof. The cartridge 26 is then dropped into position or this cartridge may he dropped into position in theI inner receptacle 22 prior to the insertion of the same in the outer receptacle 10. It will be apparent that the cartridge 26 may be inserted with either end uppermost, this cartridge being fired from either end. The combined hand vheel 16 and tiring pin 46 is then threaded onto the neck 1i and the extinguisher closed in this manner. If inspection or recharging the apparatus is desired the han-d Wheel is removed, simultaneously removing the firing pin 46, after which the inner tube or receptacle 22 mairv be removed and inverted. the cartridge Q6 being removed in this manner without any chance of mistire. The apparatus is adapted for fire extinguishing use at all times and under all climatic conditions. The cartridge is effectively scaled as a. unit and also Within the inner receptacle 22, deterioration of the same during long storage use being eiiectively minimized. In time of fire the extinguisher is inverted in the ordinary manner, the inversion of the saine to erect position causing the relatively heavy7 weighted cartridge 26 to forcibly gravitate from its inactive position to active position into cooperating With the firing pin 46. Cooperative impact between the firing pin 46 and the cartridge results in a breaking of an end diaphragm or plate and results in the ignition of the firing equipment and the combustion of the firing powder and the fuses. The fuses burn relatively slowly, the generation of the. gases taking place gradually, these gases escaping from the cartridge through the vents and cores in the weights, the gases of combustion filling the chamber 22 and moving out of the same through the port 50 and through the conducting channel 5l to the level of the tire extinguishing charge, the pressure exerted by these gases of combustion being operative to eject and expel the tire extinguishing charge in a continuous stream through the hose Q0 and nozzle 21 onto the lire.

It Will be apparent from the foregoing that I have provided an extinguisher extremely simple in construction and involving feiv arid simple manufacturing steps in the production of the parts making up the extinguisher. It will be further apparent that by a simple adaptation, standard hand extinguishers may be converted into one of theV type hereI involved, the adaptation simply including substitution of the usual inner tube by my novel gas generator system. It Will be further apparent that the parts are so related as to altord simplicity of assmbly and as to permit a maximum of safety during assembly, inspection and use and as to provide an extinguisher capable of eflicient operation in time of fire.

I claim:

1. Fire extinguishing apparatus comprising containing means holding tire extinguishing charge, a gas generator comprising a movable cartridge containing nonliquid gas producing material adapted to be set off by impact due to cartridge movement on gravity actuation.

.2. Fire extinguishing apparatus comprising containing means holding fire extinguishing charge, a gas generator adapted in time of fire to be set into activity for the generation of gases to exert operating pressure on the fire extinguishing charge to forcibly eject ythesame from the containing means; said gas generator comprising a combustible cartridge adapted for movement in time of lire from' an inactive to an active position, movenient into active `position being effective to start cartridge `combustion and resulting Vgas generation.

3. Fire extinguishing apparatus comprising containing means holding fire ex-V tinguishing charge, a gaf-s generator adapted lto 4deliver gasto said containing means comprising -a non-liquid gradually combustible cartridge ignitible by impact due to its movement, on gravity actuation, against a relatively fixed abutment.

4. Fire extinguishing apparatus comprising containing means n holding fire extinguishing charge, agas generator adapted to deliver gas to said containing means and vcomprising a non-liquid gradually combustible cartridge, firing means, and a fixed abutment, whereby the cartridge is ignited by impact due to its movement on gravity actuation. u l

A fire extinguishing device comprising 4a receptacle holding a fire extinguishing charge, a gas generator in the receptaclel adapted in time of fire to be set into activity for the-generation of gases to exert operating pressure on the fire extinguishing charge `to `forcibly eject the same from the receptacle;' said gas generator comprising an inner receptacle and a combustible cartridge movably mounted in the inner receptacle and movable on gravityactuation in time of fire from an inactive to an active position, movement into active position being effective to start cartridge combustion and resulting gas generation. y

6. A fire extinguishing device adapted to be set, into activity by inversion, comprising an outer receptacle holding lire extinguishing charge, a separately made inner receptacle supported centrally in and by the other receptacle, a cartridge movable insaid. inner receptacleand containing slow burning nonliquid material, a fixed abutment and movable iiring means in said inner receptacle, whereby gradual combustion kof the said material is effected on impact resulting from cartridge movement.

7. A. fire extinguishing device comprising an outer receptacle holding a fire extinguishing charge, a gas generator in the receptacle adapted in time of fire to be set into activity for the generation of gases to exert operating pressure on the fire extinguishing charge to forcibly eject the'same from the receptacle, said gas generator comprisingan inner receptacle having its lower end permanently closed and a cartridge containing non-liquid material inovably mountedin kthe .a chamber sealing the cartridge from the iireextinguishing charge in the outer receptacle, the said inner receptacle serving as a gas chamber during active use of the device and being provided With portineans comn'iui'iicating with `the outer receptacle.

8. A' iire extinguishing device adapted/to be set into activity by inversion, comprising a receptacle holding'v a fire `extinguishing charge, a gas generator for communication With the receptacle adapted in time of fire to be set into activity for the generation of gases to exert operating pressure on the fire extinguishing charge to forcibly eject the same from the receptacle; said gas generator comprising a combustible cartridge containing non-liquid sloivly combustible material adapted for movement in time of fire upon inversion of the device from an inactive to an active position, movement into active position being eective to start cartridge combustion and lresulting gas generation.

9. A.- fire extinguishing device adapted-to` `inversion of the device from an inactive to an active position, movement into active position being effective to start cartridge combustion and resulting gas generation.

l0. 1A .fire extinguishing device adapted to beset into'activity upon inversion, comprising an outer receptacle holding a lire extinguishing charge, a gas generator in the receptacle adapted in time of fire to be set into activity for the generation of gases to exert operating pressure on the 'ire extinguishing charge to forcibly eject the saine from the receptacle; said gas generator comprising an inner receptacle extending substantially the length of the outer receptacle; and a cartridge movablymounted in the inner receptacle, normally located in the lower end thereof and movable upon inversion of the device from the said location to an active position, movement into active position being eifective to start gas generation, the said inner receptacle comprising a gas chamber having port means communieating with the outer receptacle, said port means comprising a channel terminating adjacent opposite ends of said inner receptacle for conducting the generated gases from the gas chamber to a refrion adjacent the level of tlieiire extinguishing charge when the device is inverted. f

11. A fire extinguishing device comprising a receptacle holding a lire extinguishing charge, a gas generator for communication with the receptacle adapted in time of lire to be set into activity for the generation of gases to exert operating pressure on the re extinguishing charge to forcibly eject the same from the receptacle; said gas generator comprising a weighted combustible cartridge adapted for movement in time of lire from an inactive to an active position, stationary means normally spaced Jfrom the cartridge and cooperating with the same in time of tire to set the cartridge into combustion activity, movement of the cartridge into active position resulting in cooperative impact between the cartridge and the stationary means effective to start gas generation.

12. A ire extinguishing device comprising a receptacle holding a lire extinguishing charge, a gas generator in the receptacle adapted in time of lire to be set into activityT for the generation of gases to exert operating pressure on the lire extinguishing charge to forcibly eject the same from the receptacle, said gas generator comprising a eartridge provided with slow burning fuses and tiring equipment mounted to gravitate in time of fire from an inactive to an active position, gravitation into active position being effective to lire the cartridge and start gas generation.

13. A lire extinguishing device comprising a receptacle holding a fire extinguishing charge, a gas generator for communication with the receptacle adapted in time of tire to be set into activity ior the generation of gases to exert operating pressure on the tire extinguishing charge to forcibly eject the same from the receptacle; said gas generator Comprising a cartridge provided with slow burning non-liquid material and firing equipment adapted for movement in time ot lire from an inactive to an active position, stationary means normally spaced from the cartridge and cooperating with the same in time of fire to set the cartridge into activity.A movement of the cartridge into active position resulting in cooperative impact between the cartridge and the stationary means ef- Jective to lire the cartridge and to start gas generation. i

14. A lire extinguishing device adapted to be set into activity by inversion, comprising a receptacle holding a lire extinguishing charge, a gas generator in the receptacle adapted in time of tire to be set into activity for the generation of gai-es to exert operating pressure on the lire extinguishing charge to Jforcibly eject the same from the receptacle; said .gas generator comprising a cartridge provided with slow burning fuses and firing equipment adapted for movement in time of lire upon inversion ot the device from an inactive to an active position, stationary means normally spaced from the cartridge and adapted for cooperation with the same in time of lire to set the cartridge into activity, movement ot the cartridge upon inversion of the device eiiecting cooperative impact between the cartridge and the stationary means, this cooperation being effective to lire the cartridge and to start gas generation.

15. A fire extinguishing device adapted to be set into activity by inversion, comprising an outer receptacle holding a fire extinguishing charge, a separately made inner receptacle hung trom the top of the outer receptacle, the said inner receptacle holding a movable gas producing cartridge, a closure for the outer receptacle removable without disturbing the inner receptacle and means connected to the closure Ator cooperating with the cartridge to set the saine into activity upon inversion ot' the device.

16. A tire extinguishing device adapted to be set into activity by inversion, comprising an outer receptacle holding a fire extinguishing charge, a separately made inner receptacle hung ironi the top ol the outer receptacle, the said inner receptacle holding a movable cartridge, a closure tor the outer re ceptacle removable without disturbing the inner receptacle, and means connected to the closure for cooperating with the cartridge to set theI same into activitjv upon inversion of the device; the said inner receptacle including means for restraining movement ot the cartridge until substantially complete inversion of the device is eiected.

17. A lire extinguishing device comprising an outer receptacle holding a lire extinguishing charge, a removable inner receptacle supported in and by the outer receptacle, the said inner receptacle holding a movable cartridge, a closure for the outer receptacle unconnected with said inner receptacle and means connected to the closure for cooperating with the cartridge to set the same into activity upon inversion ot the device; the said inner receptacle comprising a chamber sealing the cartridge against the charge in the outer receptacle and including port means comnxunicating with the said outer receptacle.

1.8. tire extinguishing device comprising an outer receptacle holding a tire extinguishing charge, a removable inner receptacle hung :trom the top ot' the outer receptacle, the said inner receptacle holding a movable cartridge, a closure tor the outer receptacle removable without disturbing the inner receptacle and means connected to the closure for cooperating with the cartridge to set the saine into activity upon inversion of the device, the said inner receptacle being permancntly closed at the bottom and comprising a chamber sealing the cartridge against the charge in the outer receptacle and including port means communicating with the said llO outer receptacle; the .said port means comprising an clongatezfl channel for conducting the generated gases from the inner receptacle to a region adjacent the `level of the charge upon inversion of the device.

19. vAn inner receptaclefor a lire extinguishing device comprising a tubular member having a closed bottom and being provided with a port `adjacent its top and a channel connected to said tubular member for con'nnunication with said port, the said channel extending longitudinally of the member and terminating in a region adjacent the bottom of the same; the said channel being `provided with an equalizing port adjacent its uppu' end. K

20. A reversible cartridge, for use in lire extinguishing apparatus, having' tiring means at each end, and non-liquid combustible material between said means.

2l. A reversible cartridge, for use in tire extinguishing apparatus, containing. nonliquid combustible material. `and tiring means at each end of the cartridge movable with reference `to said material. i

522. A reversible cartridge, for use in fire extinguishing apparatus, comprising a cas ing having frangible ends and containing non-liquid combustible material and tiring means between each frangible end and the combustion material.

23. A reversible cartridge, for use in lire extinguishing apparatus, havinglilre weighted ends provided with firing means and nonliquid combustible material between them.

2li. A cartridge forv use with a fire extinguishing device comprising an enclosing shell, weight means and combustible fuse means located in the shell, and a tiring equipment in the shell adapted to be set into activity for firing the fuse means upon movement of the shell into contact with a firing pin.

25. A cartridge for use with a fire extinguishing device comprising an enclosing shell, combustible fuse means located in the shell, a hollow weight means located in the shell adjacent an end thereof and a tiring equipment in the core of said weight means; the said firing equipment being mounted adjacent an lend of the shelland adapted to be set into activity for tiring the fuse means on movement of the shell into contact with a tiring pin.

26. A cartridge for use with a lire extinguishing device comprising an enclosing shell, combustible fuse means mounted interiorly of the said shell, weighted elements located in the shell and at the opposite ends thereof and firing equipment also mounted in the shell and at opposing ends thereof whereby upon movement of the shell in either of opposing directions into Contact with a firing pin, the firing equipment will be set into activityfor `tiring the fuses.

27. A reversible cartridge for use with a fire extinguishing device comprising an enclosingshell, combustible fuse means mounted interiorly of the said shell, hollow weighted elements located in the shell and at the opposite ends thereof and firing' equipment mounted in the shell and in the cores 'of the said weighted elements whereby upon movement of the shell in either of o1 posing directions the tiring equipment is adapted to be set into activity for firing the fuse means.

'28. A cartridge for use with a lire extinguishing device comprising an enclosingv shell, weight means and combustible fuses located in the shell, and a` tiring equipment in 4the shell adjacent an end thereof adapted tobe set into activity for firing the fuses on movement of the shell into contact with a relatively fixed abutment, the shell being provided with a frangible plate at its end overlying the firing equipment.

:29. A reversible cartridge for use with a lire extinguishing device comprising an enclosing shell, combustible fuse means mounted interiorly of the said'shell, hollow weighted elements located in the shell and at the opposite ends thereof and firing equipment mounted in the shell and in the cores of the weighted elements whereby upon movement of the shell in either of opposing directions into contact with a tiring pin the firing equipment will be set into activity for :tiring the fuse means; the shell being provided at its ends with frangible plates overlying the firing equipment.

30. A cartridge for use with a fire extinguishing device comprising an enclosing shell, weighted elements enclosed by the shell and located at opposed ends of the said shell, fuse means located within the shell and centrally thereof; the said fuse means comprising a plurality of combustion` fuses each having an end exposed, screen 4elements located between the weights and the fuse means, loose firing powder confined by the screens on opposite ends of the fuses and tiring equipment enclosed by the shell.

3l. A cartridge for use with a fire extinguishing device comprising an enclosing shell, weighted elements enclosed by the shell and located at opposed ends of the said shell, fuse means located within the shell and centrally thereof; the said fuse means comprising a plurality of combustion fuses each having an end exposed, adjacent fuses having opposite ends exposed, screen elements located between the weights and the fuse means, loose firing powder coniined by the screens Von opposite ends of the fuses and liring equipment enclosed by the shell; the tiring equipment being located within the cores of the weighted elements and frangible diaphragms on oppositeends of the shell and overlying the tiring' equipment.

SELA cartridge for use with a fire ex llO tinguishing device comprising an enclosing shell, weighted means and combustible tuses located in the shell, the combustible fuses being each provided with a Wrapper; each of the l'uses having an end exposed, and lirinfr equipment in the shell adjacent the expose( ends of: the fuses adapted to be set into activity for tiring the fuse on movement of the shell in the extinguisher into contact with a tiring pin.

33. A cartridge `for use with a lire extinguishino` device comprising an enclosing shell, Weight means and combustible fuses located in the shell, and a firing` equipment in the shell adapted to be set into activity for firing the fuses on movement of the shell into Contact with a firing pin, the weight means being provided with gas vents.

34. A cartridge for use with a tire extinguishing device comprising an enclosingr shell, weighted elements enclosed by the shell and located at opposed ends of the said shell, fuse means located within the shell and centrally thereof; the said fuse means comu prising a plurality of combustion fuses each having` an end exposed, screen elements l0- cated between the weights and th(x l'use means7 loose Firing powder confined by the screens on opposite ends ol the fuses and liring equipment enclosed by the shell, the weighted elements being' provided with vent means.

35. A fire extinguishing device adapted to be set into activity by inversion, comprisingan outer receptacle holding a Fre extinguishingy charge5 a removable inner rcceptacle hung` from the top oit the outer receptacle, the said inner receptacle holding amovable cartridge provided with slow burning fuses and firing equipment., a closure ilor the outer receptacle and means independent O' the inner receptacle and located between the inner receptacle and the closure for cooperating with the cartridge to lire the same upon inversion of the device.

Signed at Columbus, in the county ol Franklin and State of Ohio this 4th day ol" April A. D. 1921.

FREDERICK C. BARGAR. 

